8080940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 19559232

約数和(自身を除く): 11478292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 293, 394, 586, 788, 985, 1172, 1379, 1465, 1970, 2051, 2758, 2930, 3940, 4102, 5516, 5860, 6895, 8204, 10255, 13790, 20510, 27580, 41020, 57721, 115442, 230884, 288605, 404047, 577210, 808094, 1154420, 1616188, 2020235, 4040470, 8080940]

約数ペア:

[(1, 8080940), (2, 4040470), (4, 2020235), (5, 1616188), (7, 1154420), (10, 808094), (14, 577210), (20, 404047), (28, 288605), (35, 230884), (70, 115442), (140, 57721), (197, 41020), (293, 27580), (394, 20510), (586, 13790), (788, 10255), (985, 8204), (1172, 6895), (1379, 5860), (1465, 5516), (1970, 4102), (2051, 3940), (2758, 2930)]